04 5.3 or 94-96 350??????

la bonbita · 06-23-2008, 02:02 PM

well i have a 94 4.3 tbi singel cab. and i have the chance to get a 2004 5.3 engin block, ill like to know what will be better if i just get a 350 tbi or bild the 5.3?? will the 350 tbi give me good mpg?? or will the 5.3 give me more? i go with the 5.3 but how much of a diffrence it its?? it will cost me more to get the 5.3 but what do u all think?? tanks fore any info

Jonce007 · 06-23-2008, 06:57 PM

If cost is an issue, this swap isn't for you. The 350 would be cheaper from the research I did and have seen.

Some folks have done the LSx swap fairly cheap. There are a couple of carb'ed 5.3's on here as well. I have roughly $8k into my swap and its just a stock 5.3L. But when I did it, I wanted to do it right the first time.

What are your goals for the build?
MPG?
Limited Budget?
HP?
Used for commuting, hauling, or hauling azz?

Thizz_Xtreme · 06-24-2008, 09:56 AM

so true the 350 would be cheaper. . . definitely the 5.3 would be more efficient when it comes down to mpg with a good tune & etc.

myth · 06-24-2008, 03:41 PM

I agree with everyone else. The 350 is cheaper. But there is nothing better then the reliability and comfort of the 5.3. I am a GM technician and you could not give me a old school push rod motor. Not to mention you will make around 50 to 75 horsepower more with the 5.3.

AceHaag · 06-26-2008, 03:34 AM

Quote: Originally Posted by myth

I agree with everyone else. The 350 is cheaper. But there is nothing better then the reliability and comfort of the 5.3. I am a GM technician and you could not give me a old school push rod motor. Not to mention you will make around 50 to 75 horsepower more with the 5.3.

the 5.3 is a push rod engine too

ExtCab96S_Dime · 06-29-2008, 02:34 PM

Quote: Originally Posted by AceHaag

the 5.3 is a push rod engine too

But not so old school lol

la bonbita · 07-09-2008, 02:13 AM

well i want it for a lil of evry thing. mostly on mpg. i know about the 4.8 gives me about 30mpg. i know thers a 5.7 tbi on the 99-00 that its alot similer to the 94-97 tbi. my friend has it on a 2000 silverado but its was factory made in mexico.(the truck its self an the engien) do any one know about enything about that? or how to do one of those swaps? i know he had to buy another computer just to get it tune. thanks guys for the info

06-23-2008, 02:02 PM	#1
la bonbita Registered User Join Date: Nov 2007 Posts: 143 Location: User is: OffLine	04 5.3 or 94-96 350?????? well i have a 94 4.3 tbi singel cab. and i have the chance to get a 2004 5.3 engin block, ill like to know what will be better if i just get a 350 tbi or bild the 5.3?? will the 350 tbi give me good mpg?? or will the 5.3 give me more? i go with the 5.3 but how much of a diffrence it its?? it will cost me more to get the 5.3 but what do u all think?? tanks fore any info
	[Reply w/Quote]

06-23-2008, 06:57 PM	#2
Jonce007 Registered User Age: 31 Join Date: Mar 2008 Posts: 197 Location: User is: OffLine	Re: 04 5.3 or 94-96 350?????? If cost is an issue, this swap isn't for you. The 350 would be cheaper from the research I did and have seen. Some folks have done the LSx swap fairly cheap. There are a couple of carb'ed 5.3's on here as well. I have roughly $8k into my swap and its just a stock 5.3L. But when I did it, I wanted to do it right the first time. What are your goals for the build? MPG? Limited Budget? HP? Used for commuting, hauling, or hauling azz?
	[Reply w/Quote]

06-24-2008, 09:56 AM	#3
Thizz_Xtreme Thizz or Die u bezzy. . . Age: 21 Join Date: Aug 2007 Posts: 95 Location: Fresno, CA AKA The Central Valley User is: OffLine	Re: 04 5.3 or 94-96 350?????? so true the 350 would be cheaper. . . definitely the 5.3 would be more efficient when it comes down to mpg with a good tune & etc.
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06-24-2008, 03:41 PM	#4
myth Registered User Join Date: May 2008 Posts: 22 Location: User is: OffLine	Re: 04 5.3 or 94-96 350?????? I agree with everyone else. The 350 is cheaper. But there is nothing better then the reliability and comfort of the 5.3. I am a GM technician and you could not give me a old school push rod motor. Not to mention you will make around 50 to 75 horsepower more with the 5.3.
	[Reply w/Quote]

06-26-2008, 03:34 AM	#5
AceHaag Call me Mario, Princess Age: 27 Join Date: Aug 2006 Posts: 3,138 Location: St. Francis, Minnesota User is: OffLine	Re: 04 5.3 or 94-96 350?????? Quote: Originally Posted by myth I agree with everyone else. The 350 is cheaper. But there is nothing better then the reliability and comfort of the 5.3. I am a GM technician and you could not give me a old school push rod motor. Not to mention you will make around 50 to 75 horsepower more with the 5.3. the 5.3 is a push rod engine too
	[Reply w/Quote]


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06-29-2008, 02:34 PM	#6
ExtCab96S_Dime Wannabe Dragger Age: 21 Join Date: Jun 2005 Posts: 1,235 Location: Neenah, Wisconsin User is: OffLine	Re: 04 5.3 or 94-96 350?????? Quote: Originally Posted by AceHaag the 5.3 is a push rod engine too But not so old school lol
	[Reply w/Quote]

07-09-2008, 02:13 AM	#7
la bonbita Registered User Join Date: Nov 2007 Posts: 143 Location: User is: OffLine	Re: 04 5.3 or 94-96 350?????? well i want it for a lil of evry thing. mostly on mpg. i know about the 4.8 gives me about 30mpg. i know thers a 5.7 tbi on the 99-00 that its alot similer to the 94-97 tbi. my friend has it on a 2000 silverado but its was factory made in mexico.(the truck its self an the engien) do any one know about enything about that? or how to do one of those swaps? i know he had to buy another computer just to get it tune. thanks guys for the info
	[Reply w/Quote]

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